European immigrants made this confection -- which has large, crisp crumbs on top -- a New York City coffee-shop favorite. An optional layer of jam between the batter and topping adds a fruity component.
Making puff pastry takes a certain amount of skill and practice. For the best results, weigh the ingredients accurately. Be sure to allow the pastry enough time to rest and chill between rollings. If you want a less rich pastry, you can substitute water for all or half of the heavy cream.